JP4486356B2 - Harness receiving device - Google Patents

Description

  The present invention relates to a harness housing apparatus having a structure in which a wire harness is pulled out and pulled in without being bitten from a harness outlet between a box body and a cover.

  FIG. 8 shows one form of a harness protector which is a conventional harness housing device (see Patent Document 1).

  The harness protector 51 does not absorb the extra length of the harness, but includes a main body 52 that houses a plurality of electric wires 57 and a cover 53. The cover 53 is provided on the main body 52 via a hinge 56 so as to be opened and closed. The cover 53 is provided with a guide plate 55 for guiding the closing with respect to the main body 52, and the main body 52 is provided with a pair of ribs 54 for accommodating the guide plate 55 inside.

The electric wire 57 contacts the tip of the rib 54 to secure a guide plate insertion space between the ribs. Thus, the guide plate 55 is smoothly inserted between the ribs without interference with the electric wire 57, and the engagement between the cover 53 and each lock portion (not shown) of the main body 52 is reliably performed without displacement.
Japanese Utility Model Publication No. 1-146711 (Fig. 4)

  However, in the conventional harness protector 51, when the cover 53 is closed with the electric wire 57 placed on the rib 54, the electric wire 57 is sandwiched between the rib 54 and the cover 53 and damaged. I was worried.

  Although the electric wire 54 of this form is a round insulation covering electric wire, as a harness accommodation apparatus which aims at thinning of a protector, for example using a flat wire harness as an electric wire, and absorbs the extra length of a harness for constant electric power supply, When used for opening / closing parts such as automobile doors and trunks, and sliding parts such as sunroofs and slide seats, protective materials such as electric wires and knitted tubes around them are covered while the electric wires (flat harness) are being pulled out and retracted. There is a concern that it may be caught between the cover and the main body, or may be rubbed into a narrow gap formed between the cover and the main body. In particular, when a knitted tube was used, there was a strong concern that the strands could be pinched or caught, causing malfunctions.

  In view of the above-described points, the present invention provides a harness housing that can reliably prevent the electric wire and its protective material from being caught between the main body of the protector and the cover when absorbing the extra harness length. An object is to provide an apparatus.

In order to achieve the above object, a harness housing apparatus according to claim 1 of the present invention houses a flat wire harness inside a protector comprising a box body and a cover, and guides the harness between the box body and the cover. In the harness housing apparatus in which the flat wire harness can be pulled out from the outlet, a pair of protruding plates are erected on the box body along the left and right sides of the harness outlet, and a concave groove is formed at the tip of each protruding plate . a pair of convex tip portion is formed in both front and rear sides of the groove, the cover, and the ribs which engage in the respective grooves to engage the pair of convex tip in both front and rear sides of each rib Grooves are provided, and each rib is positioned on the same plane as the flat surface on both the left and right sides of the horizontal flat surface in the harness outlet of the cover, and each rib engages with each groove of the pair of protruding plates And In a state where the top portions of the pair of convex are engaged in the grooves of the cover side, that the ends of both sides in the width direction of the flat wire harness when the drawer along an inner surface of the pair of projecting plates sliding contact Features.

With the above configuration, when the cover is closed on the box body, the rib enters and engages with the groove of the protruding plate, and the tip of the protruding plate enters deeper than the tip surface of the rib . Thus, without causing a gap between the tip of the projecting plate with the tip of the rib, flat wire harness is always positioned against the inner surface of the projecting plate. When the flat wire harness is pulled out from the protector, the side end portion of the flat wire harness smoothly contacts the inner surface of the protruding plate. This reliably prevents the flat wire harness and the outer peripheral protective material (protective tube) from entering between the box body and the cover at the harness outlet. Further, when the cover is closed to the box body, the flat wire harness is accommodated inside the pair of protruding plates, and the flat wire harness is in contact with the inner surface of the protruding plate. Pinching is prevented.
Moreover, the front-end | tip part of a protrusion board contacts the inner surface of the both sides of a groove | channel, and the backlash of the protrusion board to a rib board width direction (groove width direction) is prevented. Since the groove of the protruding plate engages with the rib, the protruding plate is prevented from rattling in the rib plate thickness direction. In this way, the protruding plate is prevented from rattling in the two-dimensional direction, and the protruding plate is accurately positioned.

The harness housing device according to claim 2 is the harness housing device according to claim 1 , wherein the flat wire harness is urged in the retracting direction by an elastic member in the protector.

With the above configuration, the flat wire harness is drawn into the protector by the biasing force of the elastic member, and the extra length is absorbed. When the flat wire harness is pulled in, it is possible to prevent the box body and the cover from entering or being pinched in the same manner as when the flat wire harness is pulled out. The flat wire harness is pulled in when the opening / closing body such as a door or a trunk is closed, and the flat wire harness is pulled out when the opening / closing body is opened.

According to the first aspect of the invention, and positions the impact Deban and ribs wrapped in a protruding direction, because there is no occurrence of a gap between the tip of the tip and ribs projecting plate, the flat wire harness The flat wire harness and the protective material on the outer periphery of the box body and cover are prevented from entering the box body and the cover during pulling, and the flat wire harness and protective material are reliably prevented from being caught, worn, or damaged. Reliability is improved. In addition, when closing the cover, the flat wire harness is housed inside the protruding plate, preventing it from being caught between the box body, thereby preventing the flat wire harness and the protective material from being deformed or damaged. As a result, the reliability of power supply is improved.
In addition, by engaging the tip of the protruding plate with the groove on the rib side, the protruding plate is accurately positioned, and the protruding plate is prevented from falling or bending, generating a gap between the cover and the box body. Is more reliably prevented, and the flat wire harness and its protective material are more reliably prevented from being caught, pinched, or inserted.

According to the second aspect of the present invention, even when the flat wire harness is retracted by the urging force of the elastic member, the flat wire harness and its protective material are caught or sandwiched between the box body and the cover in the same manner as when the flat wire harness is pulled out. Intrusion is surely prevented, wear and damage of the flat wire harness and the protective material are prevented, and the reliability of power supply is improved.

  FIG. 1 is an external view showing an embodiment of a harness accommodating device according to the present invention.

  This harness housing device 1 is applied to open / close parts such as automobile doors and trunks (luggage doors) and slide parts such as slide seats, slide doors, sunroofs, etc., and constantly supplies power to electrical components such as doors and trunks and auxiliary equipment. Thus, a rectangular box-shaped protector 4 composed of a synthetic resin box body (base) 2 and a cover 3 is provided.

  As shown in FIG. 2, in the protector 4 (box body 2), a pair of compression coil springs (elastic members) 5, a harness guide member 6 biased in the coil spring extension direction at the tip of the coil spring 5, and each A synthetic resin guide pin 9 that is inserted inside the coil spring 5 and has a distal end and a proximal end supported and fixed by the respective wall portions 7 and 8 in the longitudinal direction of the box body 2, and a wall portion on the bottom side of the box body 2 10 (FIG. 1), a flat wire harness (wire harness) routed in a substantially U shape along the outer peripheral surface of the harness guide member 6 and the wall 11 (FIG. 4) of the cover 3 (FIG. 1) 12 are provided.

  The harness housing device 1 shown in FIG. 1 is configured by these internal components 5, 6, and 9 and the protector 4. For example, the harness housing device 1 is fixed to the vehicle body side by a locking means (not shown) such as a locking clip in the posture shown in FIG. 1 (upside down posture in FIG. 2).

  The flat wire harness 12 of this example is configured by accommodating a flat cable 13 (FIG. 2) in a flat and slippery protective tube 14 made of synthetic resin, and is slidably contacted with the harness guide member 6 or the protector 4. It is safely protected from sliding contact with the harness outlet 15 (FIG. 1) or interference with the outside. The flat cable 13 (FIG. 2) includes a strip-shaped insulating sheet 13a and a plurality of circuit conductors 13b arranged in the insulating sheet 13a.

  In FIG. 2, the proximal end portion 12 a of the flat wire harness 12 is bent in the 90 ° direction along the bottom wall 10 (FIG. 1) of the box body 2, and the one side wall 16 of the side wall 16 is located near the front wall 7 of the box body 2. It is led out into the connector holding wall 17 from the opening and continues to one connector 18 in the holding wall 17. A plurality of terminals (not shown) are connected to the base end of the flat cable 13, and each terminal is arranged in a connector housing made of synthetic resin to constitute a connector 18.

  The longitudinal intermediate portion of the flat wire harness 12 is bent by 180 ° along the outer peripheral surface of the harness guide member 6 (in FIG. 2, it is bent upward by 90 °, but it is actually folded back into a U-shape as shown in FIG. As described above, the harness guide member 6 is led out to the outside from the slit-like harness lead-out port 15 at the front end of the protector 4. The harness guide member 6 has a semicircular cross-section at the center along which the flat wire harness 12 runs (substitute with reference numeral 6), The coil spring 5 is composed of annular portions 6a on both the left and right sides with which the tips of the coil springs 5 abut.

  The other connector (not shown) is provided on the distal end side of the flat cable 13 in the same manner as the proximal end side. The connector 18 on the base end side is connected to a wire harness on the vehicle body side (power supply side), and the connector on the tip end side is connected to a wire harness on the open / close side such as a door or a trunk. As an example, the protector 4 is disposed horizontally on the vehicle body, the intermediate portion led out of the flat wire harness 12 is bent upward (vertically) along a guide member (not shown), and the connector on the tip side is directed to the trunk side. Connector is connected.

  As shown in FIG. 2 and FIG. 3, a recess 20 serving as a harness outlet 15 is formed at the center upper portion of the front wall 7 of the box body 2, and the gap is slightly wider than the width of the flat wire harness 12 at the left and right ends of the recess 20. Thus, a pair of protruding plates (protruding portions) 21 for harness guidance protrude upward (perpendicular) and are provided integrally with the front wall 7, and the pair of protruding plates 21 are flat inner surfaces 21a along the longitudinal direction of the harness (FIG. 3). ) And a concave groove 22 at the center in the width direction of the distal end portion 21b of each protruding plate 21, and is positioned facing the plate thickness direction (harness width direction, that is, the protector width direction). The groove 22 of the protruding plate 21 is notched in a rectangular shape.

  The pair of protruding plates 21 are positioned orthogonal to the upper end (represented by reference numeral 20) of the front wall 7 of the box body 2. Note that the upper end of the front wall 7 is for convenience of explanation in the posture of FIG. 2, and is the lower end of the front wall 7 in the posture of FIG. In a broad sense, it is the tip of the front wall 7. Further, the front wall 7 is the one when the harness lead-out side is the front, and does not necessarily coincide with the direction when the vehicle is mounted.

  The upper end of the front wall 7 between the pair of projecting plates 21 is formed in a bowl shape thicker than the plate thickness of the front wall 7, and a slightly wider flat surface (substitute with reference numeral 20) that makes the flat wire harness 12 come into surface contact with it. It has become. As shown in FIG. 3, the protruding plate 21 extends vertically in the form of a rib along the inner surface of the front wall 7 (substitute with reference numeral 7) and reaches the bottom wall 10. 2 is positioned and engaged between the one rib 23 and the side wall 24 and between the other rib 23 and the step portion 25 of the front wall 7. By integrating with the rib 23, the strength (bending strength, buckling strength, etc.) of the protruding plate 21 is increased.

  As shown in FIG. 3, a recess 27 for harness wiring is formed in the longitudinal direction in the center of the box body 2 in the width direction, and arc-shaped sections 28 for coil spring arrangement are formed in the longitudinal direction on the left and right sides of the recess 27. The front end portion (represented by reference numeral 10) of the recess 27 communicates with the connector holding wall 17 in the orthogonal direction. A folded portion (substitute with reference numeral 13) in the orthogonal direction of the flat wire harness 12 (FIG. 2) is disposed at the front end portion 10. A connector 18 (FIG. 1) is locked to the connector holding wall 17 by locking means.

  In FIG. 3, a plurality of locking frame portions 29 for the cover 3 are provided on the outer peripheral wall of the box body 2. As shown in FIG. 2, a locking frame portion 29 is also provided in the vicinity of the outside of the pair of protruding plates 21 of the front wall 7 and is engaged with an engaging projection 42 (FIG. 4) of the cover 3 described later, thereby The slit-like harness outlet 15 of 1) is reinforced so as not to open up and down. The harness outlet 15 is formed between the box body 2 and the cover 3 (joint portion) as shown in FIG.

  4 (a) is a plan view showing the inside of the cover 3, FIG. 4 (b) is a front view of the cover 3, and the center of the wall 30 on the front side of the cover 3 is shown in FIG. Is formed with a recess 31 that forms a slit-shaped harness outlet 15, and the recess 31 supports the flat wire harness 12 (FIG. 2) in surface contact with a slightly wide horizontal flat surface (indicated by reference numeral 31). And a wall 34 including a flat surface 33 perpendicular to the left and right sides of the recess 31 is formed. Between the convex wall 32 and the vertical wall 34, the box main body is formed. A short rib 35 for engagement with the groove 22 of the two protruding plates 21 (FIG. 2) is formed at the same height as the wall portion 32 in the harness width direction, and a short groove 36 in the harness longitudinal direction is formed before and after the rib 35. The rib 35 is located in the middle of the groove 36. The height of the rib 35 is set to be substantially the same as or slightly lower than the depth of the groove 22 of the protruding plate 21 (FIG. 2).

  The groove 36 on the rib side continues in the same plane on the horizontal inner wall surface of the central recess (substitute with reference numeral 11) of the top wall (main wall) 11 of the cover 3. The portion 12b on the folded side of the flat wire harness 12 of FIG. Coil spring accommodating portions 38 are positioned on the left and right sides of the recess 11 via ribs 37 in the harness longitudinal direction. The cover 3 is formed thinner (low profile) than the box body 2. On one side wall 39 of the cover 3, a holding wall 40 is formed so as to project into the connector holding wall 17 (FIG. 2) of the box body 2. In FIG. 4B, the wall portion 41 that can be seen in the recess 31 of the cover 3 is the rear wall of the cover 3.

  Engaging protrusions 42 for the locking frame portion 29 of the box body 2 are provided on the outer peripheral wall (front wall, rear wall, and both side walls) of the cover 3. Engagement protrusions 42 are located in the vicinity of both sides of the recessed portion 31 for leading out the harness. The box body 2 and the cover 3 are firmly locked by these locking means 29 and 42. The recesses 20 and 31 of the box main body 2 and the cover 3 are combined vertically to form a horizontally elongated harness outlet 15 (FIG. 1).

  In a state where the cover 3 is joined and locked to the box body 2, the front end portions 21 b of the pair of projecting plates 21 of the box body 2 of FIG. 2 enter and engage into the pair of left and right grooves 36 of the cover 3. Each rib 35 in the groove 36 of the cover 3 enters and engages with the groove 22 of the plate 21. The protruding plate 21 and the rib 35 are positioned orthogonally (crossing). The inner surface 21 a (FIG. 3) of the protruding plate 21 is in contact with the side end surface 32 a (FIG. 5) of the convex horizontal wall portion 32 of the cover 3, and the outer surface 21 c (FIG. 3) of the protruding plate 21 is the vertical wall of the cover 3. It contacts the inner surface 33 of the portion 34 (FIG. 5).

  Since the protruding plate 21 and the rib 35 are engaged at right angles (intersect), it is reliably prevented that a gap is generated between the box body 2 and the cover 3 at the harness outlet 15. 3, the thin side end portion 12 c (FIG. 2) of the flat wire harness 12 is reliably prevented from entering and entering.

  That is, the groove 22 of the protruding plate 12 of the box body 2 of FIG. 2 is engaged with the rib 35 of the cover 3 of FIG. 5, and the tip 21 b of the protruding plate 21 enters the groove 36 on the rib side deeper than the rib 35. By doing so, a gap cannot be formed between the rib 35 and the protruding plate 21, and the side end portion 12 c of the flat wire harness 12 is always in contact with the inner surface 21 a of the protruding plate 21. In order to generate a gap, the cover 3 must be opened more than the depth dimension of the groove 22 of the protruding plate 21, which is blocked by the locking means (the locking frame portion 29 and the engagement protrusion 42). Therefore, there is no gap.

  Thus, when the flat wire harness 12 is pulled out or retracted, the side end portion 12c of the flat wire harness 12 is always in sliding contact with the inner surface 21a of the protruding plate 21, and the flat wire harness between the box body 2 and the cover 3 is brought into contact. 12 (especially the outer peripheral mesh-like protective tube 14) is prevented from entering, and the side end 12c of the flat wire harness 12 is reliably prevented from being caught, worn, broken or damaged. The drawing operation of the flat wire harness 12 is performed when an opening / closing body (not shown) such as a door or a trunk is opened, and the drawing operation (absorption of excess length) is performed when the opening / closing body is closed.

  Similarly, when the cover 3 is closed (assembled) to the box body 2, no gap is generated, and the side end 12 c of the flat wire harness 12 is accommodated inside the pair of projecting plates 21 projecting high. Therefore, there is no fear that the flat wire harness 12 (particularly the protective tube 14) is sandwiched between the box body 2 and the cover 3.

  In the above embodiment, the groove 22 is provided in the protruding plate 21 of the box body 2 and the rib 35 is provided in the cover 3. However, as shown in FIGS. 6 to 7, the protruding plate (projecting portion) 21 'of the box body 2'. It is also possible to provide a structure in which a convex portion 22 ′ is provided at the tip 21 b ′, a concave portion 35 ′ is provided in the cover 3 ′, and the convex portion 22 ′ enters and engages with the concave portion 35 ′. In FIGS. 6 to 7, the configuration other than the protruding plate 21 ′ having the convex portion 22 ′ and the concave portion 35 ′ is the same as that of the previous example.

  The convex portion 22 ′ is formed in a rectangular shape narrower than the lateral width of the protruding plate 21 ′, and the concave portion 35 ′ is slightly thicker than the thickness of the convex portion 22 ′ so as to engage the convex portion 22 ′ without rattling. It is preferable that it is formed wide and wide in the harness longitudinal direction (cover longitudinal direction). The recess 35 ′ is provided by digging vertically into a slightly wide flat wall 31 that forms a slit-like harness outlet, and the depth of the recess 35 ′ is slightly deeper than the protruding length of the protrusion 22 ′.

  When the protrusion 22 ′ enters and engages with the recess 35 ′, the protrusion 22 ′ and the wall surface 31 intersect each other, and even if the protruding plate 21 ′ is lifted, the inner side surface 22a ′ and the wall surface of the protrusion 22 ′. 31, the flat wire harness 12 (FIG. 2) is always in contact with the inner surface 22a ′ of the convex portion 22 ′, and the flat wire harness 12 (especially the outer peripheral protective tube 14) is caught or pinched. Rubing or the like is reliably prevented.

  In each of the above embodiments, the box bodies 2 and 2 ′ are provided with the protruding plates 21 and 21 ′ having the grooves 22 or the convex portions 22 ′, and the ribs 35 and the concave portions 35 ′ are provided on the covers 3 and 3 ′. However, conversely, the covers 3 and 3 ′ are provided with protruding plates (protruding portions) 21 and 21 ′ having grooves 22 or convex portions 22 ′, and the ribs 35 or the concave portions 35 ′ are provided on the box main bodies 2 and 2 ′. It is also possible.

  In the above embodiment, the pair of coil springs 5 is used as an elastic member for urging the flat wire harness 12. However, only one coil spring 5 is arranged in the center, and the central portion of the harness guide member 6 is coiled. It is also possible to urge directly by the spring 5 or use a corrugated leaf spring (not shown) instead of the coil spring 5.

  In the above embodiment, the protruding plates 21 and 21 'are used as the protruding portions. However, a thick block-shaped protruding portion can be provided instead of the protruding plates 21 and 21'. Even in this case, the groove 22 for engaging the mating rib 35 in the intersecting direction and the convex portion 22 ′ for engaging the concave portion 35 ′ are essential.

  Further, in the above embodiment, the flat wire harness 12 is one in which the outer periphery of the flexible flat cable 13 is covered with a bendable protective tube 14, but the protective tube 14 is abolished and the outer surface of the flat cable 13 is used. It is also possible to directly use what is covered with an insulating protective film (such as a sheet) having a good sliding property.

  Moreover, in the said embodiment, although the flat wire harness 12 was used as a wire harness, it replaced with the flat cable 13 and arrange | positioned the fine fine insulation coat | covered electric wire (not shown) in a horizontal line, and a flat wire It can also be used as a harness.

It is an external appearance perspective view which shows one Embodiment of the harness accommodating apparatus of this invention. It is a perspective view which shows the internal structure by the side of the box main body of a harness accommodating apparatus. It is a perspective view which shows one Embodiment of a box main body. (A) is a top view which shows one Embodiment of a cover, (b) is a front view of a cover similarly. It is a principal part perspective view which shows the harness outlet opening side of a cover. It is a perspective view which shows the principal part of other one Embodiment of a box main body. It is a perspective view which shows the principal part of other embodiment of a cover. It is a principal part perspective view which shows one form of the conventional harness protector.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Harness accommodating apparatus 2, 2 'Box main body 3, 3' Cover 4 Protector 5 Coil spring (elastic member)
12 Flat wire harness (wire harness)
15 Harness outlet 21, 21 ′ Protruding plate (protruding part)
22 groove 22 'convex part 35 rib 35' concave part 36 groove

Claims (2)

In a harness housing device that accommodates a flat wire harness inside a protector formed of a box body and a cover, and that can be pulled out from a harness outlet between the box body and the cover,
A pair of projecting plates are erected on the box body along the left and right sides of the harness outlet, and a concave groove is formed at the front end of each projecting plate, and a pair of convex front end portions on both front and rear sides of the groove is formed. are, on the cover, each rib engaging in the grooves, and the grooves engaging the pair of convex tip portion is provided at both front and rear sides of each rib, the harness outlet of each rib is the cover Are located on the same plane as the flat surface on both the left and right sides of the horizontal flat surface, and the ribs engage with the grooves of the pair of projecting plates. A harness housing apparatus, wherein the ends of the flat wire harness at the both sides in the width direction are in sliding contact with the inner surfaces of the pair of projecting plates in a state of being engaged with the grooves . The flat wire harness harness accommodating device according to claim 1, characterized in that it is biased in a retracting direction by an elastic member in the protector.

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